SimpleFunctions
20 contractsKalshi + Polymarketrefreshed 6 min ago

CSyD Defensa y Justicia vs. CA Boca Juniors - More Markets: CA Boca Juniors (-1.5)

Liquidity-weighted aggregate sits at 27% across 20 contracts. Kalshi at 33%, Polymarket at 26% — a 7pp cross-venue gap.

Implied probability

27%
0%50%100%

Kalshi

33%

2 contracts

Polymarket

26%

18 contracts

Cross-venue gap

7pp

wide divergence

24h move

no pin

24h volume

$420

20 contracts

Top contract

24¢

$303 · Kalshi

30-day trend

0%50%100%-30d-3w-2w-1wtodayAggregate: 29% (7 days, 7 points)Aggregate: 29% on 2026-05-03
Aggregate of 20 contracts · 7d

Cross-venue edge

Kalshi 33¢ · Polymarket 26¢ · 7pp spread

Buy on Polymarket (26¢, 18 contracts) and sell on Kalshi (33¢) — assuming both contracts settle on the same outcome.

Bracket families

5 clusters across 20 contracts.

These contracts were grouped by title similarity. The headline aggregate combines all clusters; verify the cluster you actually need before quoting a number.

Heads-up — heterogeneous clusters

The top two clusters share only 0% of their title tokens — “Barcelona SC vs. CA Boca Juniors” vs “CSyD Macará vs. CA Tigre - More Markets”. The headline aggregate weights both, so the number on this page is meaningful only if the clusters resolve to the same question.

Cluster 1

Barcelona SC vs. CA Boca Juniors

12 contracts$15

Cluster 2

CSyD Macará vs. CA Tigre - More Markets

5 contracts$0

Cluster 3

Mendoza vs Defensa y Justicia Winner

1 contract$303

Cluster 4

Barcelona vs Boca Juniors Winner

1 contract$102

Cluster 5

Liga Nacional de Básquetbol: Winner: Boca Juniors

1 contract$0

What moved the line

  • May 3CA Boca Juniors (-2.5)7pp1219¢ · Polymarket
  • May 3Barcelona SC (-2.5)3pp1013¢ · Polymarket

Recently closed in general

These markets stopped trading. Last odds and any captured outcome are shown above — full settlement detail lives at the venue.

More like this

Adjacent prediction questions.

How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.

Last updated on this page: 6 min ago.